1889 in baseball


Champions

Major League Baseball

;World Series
New York defeated Brooklyn, six games to three.
;Ohio Championship
;Philadelphia Championship
1 National League Triple Crown pitching winner

Major league baseball final standings

American Association final standings

National League final standings

Notable seasons

  • Boston Beaneaters first baseman Dan Brouthers led the NL in batting average. He was second in the NL in on-base percentage, adjusted OPS+, and runs batted in. He was third in the NL in slugging percentage.
  • Boston Beaneaters pitcher John Clarkson had a win–loss record of 49–19 and led the NL in innings pitched, wins, shutouts, earned run average, adjusted ERA+, and strikeouts.

    Events

January–February

January–April

^Some sources show 1890

May–August